Short answer: The single most effective thing you can do is crate-train your dog over several weeks so the travel crate feels safe. Add a direct route, exercise before check-in and a familiar-smelling item. Don’t sedate: the Australian Veterinary Association states that “dogs and cats should not be sedated for air transport,” because the roughly 8,000-foot cabin altitude plus sedation can compromise breathing and circulation. Ask your vet about non-sedating options instead.
International travel is stressful for most dogs, whether they fly in the cabin or as cargo. You can’t remove that stress entirely, but thoughtful preparation in the weeks before the flight makes a real difference to how your dog handles the day.
Why Is Sedation Generally Not Recommended?
It’s a common first instinct, but veterinary bodies advise against it. The AVA’s policy gives four reasons:
- Altitude. Cabins and holds are typically pressurised to about 8,000 feet. Sedation lowers blood pressure, heart rate and breathing rate, which can tip into “cardiovascular and respiratory compromise and collapse.”
- Loss of protective reflexes. A sedated dog struggles to balance, keep its footing in a moving crate, and regulate its temperature.
- It doesn’t treat the fear. The AVA notes that “sedation does not reduce the anxiety experienced by animals,” and effects vary unpredictably between individuals.
- No one can help mid-flight. A dog in the hold can’t be reached if something goes wrong.
The AVA does recognise that anti-nausea or anti-anxiety medication “may be desired or required,” as long as it’s non-sedating. That’s a conversation for your vet, and it should happen well before the flight, not in the final week. Give any new medication a trial run at home so you know how your dog responds. Never give human medicines or leftover prescriptions without veterinary advice.
How Does Crate Training Help?
A dog that’s relaxed inside its crate, rather than merely tolerating it, handles travel far better than one meeting the crate for the first time on travel day. Humane World for Animals says crate training “can take days or weeks, depending on your dog’s age, temperament and past experiences.” A long-haul flight asks for more than basic comfort, so start early:
- Put the actual travel crate somewhere the family spends time, door open, with treats inside.
- Feed meals near the crate, then inside it.
- Close the door for short periods and build up gradually, several times a day.
- Practise longer stretches, including time with you out of sight, and car rides in the crate.
- Never use the crate as punishment. It undoes the calm association you’re building.
Using the same crate your dog will fly in also lets you confirm it’s big enough. IATA’s pet guidance says the animal must have room “to turn about normally while standing, to stand and sit erect, and to lie in a natural position.” IATA also “continues to endorse recommendations not to sedate or tranquilize pets” in transit. Our guide to the cost of flying a large dog internationally covers crate sizing.
Do Pheromones and Calming Products Work?
Less well than the marketing suggests. A 2010 systematic review in JAVMA found that 11 of 14 studies gave insufficient evidence for pheromone products, including dog-appeasing pheromone for “travel-related problems.” Only one study showed a benefit, for anxiety during training. Pheromone sprays or collars are unlikely to do harm, so they’re reasonable to add to crate training, but don’t count on them as the main plan.
What Helps on Travel Day?
| When | What to do | Why |
|---|---|---|
| Morning of the flight | A long walk or play session | A tired dog settles more easily |
| A few hours before check-in | A light meal and water | US rules for animals in transport require food and water to be offered within 4 hours beforehand |
| At check-in | A worn T-shirt or blanket with your scent in the crate | Familiar smells are comforting |
| Throughout | Stay calm and matter-of-fact | Dogs read our stress |
| Booking | The most direct route available | Fewer transfers mean less handling and less time on the tarmac |
The 4-hour rule comes from the USDA’s Animal Welfare Act regulations (9 CFR 3.17). The same rules limit how long dogs can be exposed to temperatures above 85°F (29.5°C) while being moved to or from the aircraft (9 CFR 3.20). That’s one reason airlines restrict hold travel in hot weather.
Does It Matter Whether Your Dog Flies in the Cabin or the Hold?
It changes what you can control. A small dog in the cabin stays with you in a carrier under the seat, so a familiar carrier and your presence do most of the work. See our guide to airlines that allow pets in the cabin on international flights. A larger dog in the hold is out of reach for hours, so crate training, crate fit and route choice matter even more. Flat-faced breeds carry extra risk in either setting; read our brachycephalic relocation guide before booking.
What Should You Discuss With Your Vet Beforehand?
- Whether your dog is fit to fly, especially if it’s older or has heart, breathing or joint problems
- Non-sedating options for anxiety or travel sickness, with a trial run at home
- Pain relief for a dog with arthritis facing long crate confinement. Our guide to relocating a senior German Shepherd covers this in detail.
What’s the Realistic Goal?
The goal isn’t a dog that feels zero stress on an international trip; that’s not a realistic bar for most dogs. It’s reducing that stress through preparation, so the experience is manageable rather than traumatic and your dog arrives calm and healthy.
This article is for informational purposes only and does not replace guidance from your veterinarian.
Sources
- Australian Veterinary Association — Medication of dogs and cats for air transport
- Humane World for Animals — How to Crate Train Your Dog or Puppy
- Frank D, Beauchamp G, Palestrini C, Journal of the American Veterinary Medical Association — Systematic review of the use of pheromones for treatment of undesirable behavior in cats and dogs, 2010
- International Air Transport Association — Traveler’s Pet Corner
- Legal Information Institute (Cornell Law School) — 9 CFR § 3.17 Food and water requirements
- Legal Information Institute (Cornell Law School) — 9 CFR § 3.20 Handling
